Upgrade to Pro — share decks privately, control downloads, hide ads and more …

JVM の仕組みを理解して PHP で実装してみよう

Avatar for memory memory PRO
May 23, 2025
Programming
1
350

JVM の仕組みを理解して PHP で実装してみよう

Nextbeat Tech Bar： Java/JVM祭り

Avatar for memory

memory PRO

May 23, 2025
Tweet

More Decks by memory

See All by memory
AI 時代だからこそ学ぶべき PHP の基礎
Avatar for memory m3m0r7
PRO
7
2.1k
コードゴルファー道
Avatar for memory m3m0r7
PRO
0
490
ChatGPT とつくる PHP で OS 実装
Avatar for memory m3m0r7
PRO
3
290
事業観点から見る技術的負債の返済
Avatar for memory m3m0r7
PRO
4
1.2k
PHP でアセンブリ言語のように書く技術
Avatar for memory m3m0r7
PRO
1
250
PHP でアセンブリっぽく書く技術
Avatar for memory m3m0r7
PRO
1
160
How to implement a RubyVM with PHP?
Avatar for memory m3m0r7
PRO
3
2.9k
二郎系ラーメンのコールで学ぶ AST 解析
Avatar for memory m3m0r7
PRO
8
3.1k
RubyVM を PHP で実装する 〜Hello World を出力するまで〜
Avatar for memory m3m0r7
PRO
1
980

Other Decks in Programming

See All in Programming
愛される翻訳の秘訣
Avatar for Kishikawa Katsumi kishikawakatsumi
3
370
MDN Web Docs に日本語翻訳でコントリビュート
Avatar for uutan1108 ohmori_yusuke
0
390
DevFest Android in Korea 2025 - 개발자 커뮤니티를 통해 얻는 가치
Avatar for Suhyeon Kim wisemuji
0
180
Giselleで作るAI QAアシスタント 〜 Pull Requestレビューに継続的QAを
Avatar for Tadashi Shigeoka codenote
0
340
例外処理とどう使い分ける？Result型を使ったエラー設計 #burikaigi
Avatar for Takuma Kajikawa kajitack
16
5.1k
dchart: charts from deck markup
Avatar for Anthony Starks ajstarks
3
950
Denoのセキュリティに関する仕組みの紹介 (toranoana.deno #23)
Avatar for uki00a uki00a
0
220
CSC307 Lecture 03
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
1
470
ThorVG Viewer In VS Code
Avatar for Nor-s nors
0
660
CSC307 Lecture 04
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
630
Pythonではじめるオープンデータ分析〜書籍の紹介と書籍で紹介しきれなかった事例の紹介〜
Avatar for Ryo YOSHI welliving
3
780
re:Invent 2025 トレンドからみる製品開発への AI Agent 活用
Avatar for Kohei Yoshikawa yoskoh
0
620

Featured

See All Featured
Optimizing for Happiness
Avatar for Tom Preston-Werner mojombo
379
70k
Building Experiences: Design Systems, User Experience, and Full Site Editing
Avatar for Michelle Schulp Hunt marktimemedia
0
370
Principles of Awesome APIs and How to Build Them.
Avatar for Keavy McMinn keavy
127
17k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
Avatar for Morgane Peng morganepeng
133
19k
How to build a perfect <img>
Avatar for Jono Alderson jonoalderson
1
4.8k
The Limits of Empathy - UXLibs8
Avatar for Cassini Nazir cassininazir
1
200
Speed Design
Avatar for Sergey Chernyshev sergeychernyshev
33
1.5k
Lessons Learnt from Crawling 1000+ Websites
Avatar for Charles Meaden charlesmeaden
PRO
0
1k
svc-hook: hooking system calls on ARM64 by binary rewriting
Avatar for Akira Moroo retrage
1
50
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
Avatar for konakalab konakalab
0
330
Abbi's Birthday
Avatar for Violet Bock coloredviolet
0
4.2k
Making Projects Easy
Avatar for Brett Harned brettharned
120
6.5k

Transcript

  1. Ί΋Γʔ +7.ͷ࢓૊ΈΛཧղͯ͠ 1)1Ͱ࣮૷ͯ͠ΈΑ͏ /FYUCFBU5FDI#BSɿ+BWB+7.ࡇΓ 1

  2. Ί΋Γʔ NNS ෳ਺ͷϕϯνϟʔاۀ΍ελʔτ Ξοϓاۀɼ্৔اۀͰιϑτ΢Σ ΞΤϯδχΞ΍$50ͱͯ͠׆ಈɻ ීஈ͸3VCZͱ5ZQF4DSJQUॻ͍ͯ ·͢ɻ 2 NNS NNS

  3. 3 NEW!

  4. 1)1Ͱ+7.ͷ࣮૷ !1)1FS,BJHJ 4 1)1Ͱ3VCZ7.ͷ࣮૷ !3VCZ,BJHJ աڈͷ࡞඼ʜ

  5. 7.ʢ7JSUVBM.BDIJOFʣͷ࢓૊Έ +7.ͷ࣮૷ํ๏ 1)1Ͱͷ࣮૷ํ๏ %&.0 5 ͋͐͡Μͩ

  6. ஫ҙࣄ߲ 6

  7. ࣮૷ͷ͠΍͢͞ͷ؍఺Ͱ+%,Λڭࡐͱ͠·͢ ίϯύΠϥʹ͍ͭͯ͸࿩͠·ͤΜ 1)1 +BWBͷॻ͖ํʹ͍ͭͯ͸࿩͠·ͤΜ +7.4QFDJ fi DBUJPOͷৄ͍͠ಡΈํʹ͍ͭͯ͸ 7 ஫ҙࣄ߲ ࿩͠·ͤΜ

  8. 8 ϦϙδτϦͷ͝঺հ IUUQTHJUIVCDPNQIQKBWBQIQKBWB

  9. ଟ͘ͷਓ͕֤ʑͷ޷͖ͳݴޠͰ +7.Λ࣮૷͢Δ͜ͱ͕ྲྀߦΓ·ͨ͠Ͷ ʢ೥લʣ 9

  10. ࠓ͸--.΋͋Γɼੲ΄Ͳ࣮૷ʹ ۤ৺͠ͳ͍ͩΖ͏ͱࢥ͍·͢ɻ  ϓϩάϥϛϯάॳ৺ऀͷํ΋௅ઓ͕Ͱ͖Δ ͱͯ΋ྑ͍࣌୅͕౸དྷ͖ͯ͠·ͨ͠ɻ 10

  11. ͷͰͥͻ௅ઓͯ͠ΈͯͶʂ 11

  12. 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ 12

  13.  +7.Λ࣮૷͢Δʹ͋ͨͬͯ7.ͷཧղ͸ඇৗʹॏཁͰ͢ɻ  7.͸7JSUVBM.BDIJOFͱ͍͍ɼͦͷίϯϐϡʔλͷಈ࡞Λιϑτ΢ΣΞ্Ͱ࠶ݱ ͢Δ΋ͷͰ͢ɻ  ྫ͑͹7JSUVBM#PYͳͲ͕Πϝʔδʹ͍ۙΜ͡Όͳ͍Ͱ͠ΐ͏͔ɻ  ͨͩɼ͜ΕΒͷ΄ͱΜͲ͸ɼ+7.ͷΑ͏ͳ7.ͱ͸গ͠ҟͳΓ·͢ɻ 13

    7. 7JSUVBM.BDIJOF ʹ͍ͭͯ

  14.  ҰํͰɼ+7.ʢ+BWB7JSUVBM.BDIJOFʣ΍;FOE7. 1)1༻ͷ7JSUVBM.BDIJOF ɼ 3VCZ7.ͳͲ͸શ͘ҟͳΓ·͢ɻ  ઌ΄Ͳͷྫ͸ϋʔυ΢ΣΞϨϕϧͷ΋ͷͰ͕͢ɼ͜ΕΒ͸ΞϓϦέʔγϣϯϨϕϧ ͷ΋ͷͰ͢ɻ  7.ͱॻ͍͍ͯͯ΋ɼ͍͔ͭ͘छྨ͕͋ΔΜͩɼͱ͓΅͓͖͑ͯ·͠ΐ͏ɻ

     ࣍ʹྫͷਤΛࣔ͠·͢ɻ 14 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ

  15. 15 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ macOS VirtualBox (VM) JVM Java ϓϩάϥϜ

    JVM Java ϓϩάϥϜ Zend VM PHPϓϩάϥϜ

  16.  ͦͯ͠ɼ΄ͱΜͲͷΞϓϦέʔγϣϯϨϕϧͷ7.͸ελοΫϚγϯʹ͍͔ۙͨͪͰ ࣮ͯ͠૷͞Ε͍ͯ·͢ʢ%BMWJLͳͲ͸আ͘ʣɻ  ΋ͪΖΜ+7.΋3VCZ7.΋ελοΫϚγϯͷΑ͏ͳܗͰɼ$16ͷ΄ͱΜͲ ʢY͸ʣ͸ϨδελϚγϯͰ͢ɻ  ελοΫϚγϯͱ͸ɼࢦఆ͞Ε͍͔ͨͭ͘ͷϨδελ্ʹԿ͔Λ֨ೲ͢ΔͷͰ͸ͳ ͘ɼσʔλΛελοΫʢੵΈ্͛ʣͳ͕Βɼॲཧ͍ͯ͘͠ํ๏Ͱ͢ɻ 

    ҰํϨδελϚγϯ͸ɼ͋Β͔͡ΊܾΊΒΕͨϨδελͱݺ͹ΕΔྖҬʹ஋Λ֨ೲ ͯ͠ܭࢉΛߦ͍ͬͯ͘΋ͷͰ͢ɻ 16 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ

  17.  ϨδελϚγϯͷݩΛ֞ؒݟ͍ͨͷͰ͋Ε͹ɼΞηϯϒϦݴޠΛॻ͍ͯɼ֤$16ʹ ࠷దԽ͞ΕͨܗͰτϥϯεύΠϧ͢Ε͹ɼ͋Δఔ౓ཧղͰ͖ΔΜ͡Όͳ͍͔ͳͱࢥ͍ ·͢ɻ  ༨ஊͰ͕͢ɼελοΫϚγϯ͸Ұ෦ͷϨδελϚγϯͷ࢓૊ΈΛऔΓೖΕ͍ͯΔ͜ͱ ΋͋Γ·͢ɻ 17 7. 7JSUVBM.BDIJOF

    ʹ͍ͭͯ

  18. ελοΫϚγϯ ʙ  Λٙࣅ໋ྩηοτͰܭࢉ͢Δʙ 18

  19.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 19 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output - constadd ໋ྩ͸ 1 ͭͷΦϖϥϯυΛऔΓɼͦΕΛελοΫ ʹϓογϡ͢Δ໋ྩ - plus ͸ελοΫ͔Β 2 ͭ஋Λϙοϓ͠ɼͦΕΛՃࢉͨ͠΋ͷ ΛελοΫʹϓογϡ͢Δ໋ྩ - output ͸ελοΫ͔ΒҰͭϙοϓ͠ग़ྗ͢Δ໋ྩ - ্هͷ 3 ͭͷ໋ྩͰ࣮ݱՄೳͰ͢ɻ͜ͷҰ࿈ͷྲྀΕΛ໋ྩ γʔέϯεͱݴͬͨΓ͠·͢ɻ

  20.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 20 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output ελοΫ 1 ελοΫʹ 1 Λϓογϡ

  21.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 21 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output ελοΫ 1 ελοΫʹ 2 Λϓογϡ 2

  22.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 22 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output ελοΫ 1 2 ͭͷσʔλΛϙοϓ 2 3 Ճࢉͨ݁͠ՌΛϓογϡ

  23.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 23 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output ελοΫ 3 ελοΫʹ 3 Λϓογϡ 3

  24.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 24 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output ελοΫ 3 2 ͭͷσʔλΛϙοϓ 3 6 Ճࢉͨ݁͠ՌΛϓογϡ

  25.   Λٙࣅ໋ྩηοτͰܭࢉ͢Δ 25 7. 7JSUVBM.BDIJOF ʹ͍ͭͯ constadd (operand: 1)

    constadd (operand: 2) constadd (operand: 3) plus plus output ελοΫ 6 1 ͭͷσʔλΛϙοϓ

  26. ϨδελϚγϯͷ࢓૊Έ͸ $16ʹΑͬͯҟͳΔͷͰׂѪ͠·͢ 26

  27. +7.ͷ࣮૷ํ๏ 27

  28.  7.ͷ࣮૷ํ๏͕֓ͶΘ͔Γ·ͨ͠ͶɻͰ͸ɼ࣮ࡍʹ+7.ͷ࣮૷ํ๏ʹ͍ͭͯཧղ ΛਂΊ͍͖ͯ·͠ΐ͏ɻ  +7.͸DMBTTϑΝΠϧͱݺ͹ΕΔσʔλߏ଄ͷू߹Λ໋ྩͱղऍͯ͠ಈ࡞ͤ͞ΔΞ ϓϦέʔγϣϯϨϕϧͷ7.Ͱ͢ɻ  DMBTTϑΝΠϧ͸ɼ+7.ͷن໿ʹଇΓɼҰൠతʹ͸+BWBϓϩάϥϜ͔ΒίϯύΠϧ ͞Ε·͢ɻ 

    ͋Δ͍͸ɼ,PUMJO 4DBMBͷΑ͏ͳ+7.ݴޠͱݺ͹ΕΔϓϩάϥϜ΍ɼ΋ͪΖΜ ίϯύΠϥΛࣗ࡞ͯ͠+7.ݴޠͱ͢Ε͹ɼࣗ෼ࣗ਎ͷ޷͖ͳ΋ͷ΋ؚΈ·͢ɻ 28 +7.ͷ࣮૷ํ๏

  29.  ͦͯ͠ɼ͜ΕΒ͸+7.4QFD 5IF +BWBš7JSUVBM.BDIJOF 4QFDJ fi DBUJPO ͱݺ͹ΕΔɼυΩϡϝϯτ͕ΦϯϥΠϯͰެ։͞Ε͓ͯΓɼ+7. Λࣗ࡞͢ΔڭՊॻͱ΋ͳΓ·͢ɻ 

    +%,͔Βɼจࣈྻॲཧͷ࠷దԽͳͲ͕͋Γ࣮૷͕൥ࡶʹͳΔͨΊɼखܰʹ΍Δ ͨΊʹ͸+%,Λਪ঑͠·͢ɻ  +%,͕͍͍ײ͡ʹಈ͍ͨΒɼ+%,ͳͲʹγϑτ͍ͯ͘͜͠ͱΛ͓͢͢Ί͠ ·͢ɻ  υΩϡϝϯτ͸ͪ͜ΒIUUQTEPDTPSBDMFDPNKBWBTFTQFDTKWNTTFIUNM 29 +7.ͷ࣮૷ํ๏

  30. ͱ͸͍͑ʜ 30

  31.  ௚ۙͰ͸--.΋ൃల͖͍ͯͯ͠ΔͷͰɼ$IBU(15ɼ$MBVEFɼ(FNJOJͳͲΛύʔτ φʔͱͯ͠ɼ࣮૷͢Δ΋શવ͋ΓͰ͢ɻ  ྫ͑͹ɼDMBTTϑΝΠϧͷࠜఈͷσʔλߏ଄͸$MBTT'JMF4USVDUVSFͱݺ͹ΕΔ΋ͷ Ͱ͕͢ɼ$IBU(15PͰ΋ద੾ͳճ౴Λग़ͯ͘͠Ε·͢ɻ 31 +7.ͷ࣮૷ํ๏

  32. 32 +7.ͷ࣮૷ํ๏ +7.4QFDΛ௚઀ಡΜͰ͍͘৔߹ IUUQTEPDTPSBDMFDPNKBWBTFTQFDTKWNTTFIUNM KWNTIUNMKWNT  $IBU(15ͱҰॹʹ࡞͍ͬͯ͘

  33. ͦͯ͠$IBU(15ͱ͍ͬ͠ΐʹ ࡞͍ͬͯ͘৔߹͸ྫ΋ࣔͯ͘͠Ε·͢ 33

  34. 34 +7.ͷ࣮૷ํ๏ $IBU(15ͱҰॹʹ࡞͍ͬͯ͘ͱʜ

  35.  $MBTT'JMF4USVDUVSF͸DMBTTϑΝΠϧͷߏ଄Λఆٛ͢Δॏཁͳσʔλߏ଄Ͱ͢ɻ 㙽ʹ΋֯ʹ΋͜ͷ࢓૊ΈΛ஌Βͳ͚Ε͹ɼଞݴޠͰ࣮૷Ͱ͖·ͤΜɻ  ຊࢿྉΛࢀߟʹ࣮૷தʹ͍᪴ͨ৔߹͸ɼͥͻ--.ʹฉ͖ͳ͕Β΍ͬͯ΋Β͑Δͱ εϜʔζ͔ͳͱࢥ͍·͢ɻ  Ͱ͸ɼ$MBTT'JMF4USVDUVSFΛಡΈࠐΉ࢓૊Έ1)1Ͱ࣮૷ͭͭ͠ɼࠓճ͸ )FMMP8PSMEͷग़ྗΛΰʔϧͱ࣮ͯ͠૷·Ͱ΍ͬͯΈ·͠ΐ͏ɻ 

    )FMMP8PSMEͷग़ྗͰ͋Ε͹ɼ+7.4QFDʹهࡌ͞Ε͍ͯΔ಺༰͢΂ͯΛɼ ద੾ʹཧղ࣮ͯ͠૷͢Δඞཁ΋ͳ͍ͷͰɼָ࣮͘͠૷Ͱ͖Δ͜ͱؒҧ͍ͳ͠Ͱ͢ɻ 35 +7.ͷ࣮૷ํ๏

  36. 1)1Ͱͷ࣮૷ํ๏ 36

  37. 1)1ͰόΠφϦΛಡΉʹ͸ʜʁ 37

  38.  1)1ʹ΋όΠφϦΛಡΈࠐΉํ๏͕ఏ ڙ͞Ε͍ͯ·͢ɻ͜͏͍ͬͨέʔεͰ ͸GPQFO GSFBE VOQBDLͳͲ͕ ศརͰ͢ɻ  DMBTTϑΝΠϧ͸σʔλߏ଄ͱ͸͍͑ɼ +40/ͷΑ͏ʹϚγϯϦʔμϒϧͰ΋

    ώϡʔϚϯϦʔμϒϧͰ΋ͳ͘ɼόΠ φϦͰ͢ɻ 38 1)1ͰόΠφϦΛಡΉʹ͸ʜʁ

  39. όΠφϦΛಡΈࠐΜͰ͍͘ྲྀΕ 39

  40. 40 όΠφϦΛಡΈࠐΜͰ͍͘ྲྀΕ ClassFile Structure ΛಡΈࠐΉ Constant Pool ΛಡΈࠐΉ ϝιουͷ৘ใΛಡΈࠐΉ Code

    Attribute ΛಡΈࠐΉ ΦϖίʔυΛ࣮ߦ͢Δ ΦϖίʔυʢϓϩάϥϜʣΛ࣮ߦ͢ΔͨΊͷ
 લॲཧ

  41. $MBTT'JMF4USVDUVSF 41

  42.  $MBTT'JMF4USVDUVSF͸DMBTTϑΝΠϧ ͷϝλ৘ใͳͲ͕֨ೲ͞Ε͍ͯΔσʔλ ߏ଄Ͱ͢ɻ  ྫ͑͹ɼίϯύΠϧ࣌ʹ༻͍ΒΕͨ +BWBͷόʔδϣϯɼ͜ͷ͋ͱղઆ͢ Δ+7.Λ࣮૷͢ΔࡍͷίΞͱͳΔ $POTUBOU1PPMɼϑΟʔϧυͷ৘ใɼ ϝιουͷ৘ใͳͲͰ͢ɻ

    42 $MBTT'JMF4USVDUVSF

  43. 43 $MBTT'JMF4USVDUVSF  $MBTT'JMF4USVDUVSF͸DMBTTϑΝΠϧ ͷϝλ৘ใͳͲ͕֨ೲ͞Ε͍ͯΔσʔλ ߏ଄Ͱ͢ɻ  ྫ͑͹ɼίϯύΠϧ࣌ʹ༻͍ΒΕͨ +BWBͷόʔδϣϯɼ͜ͷ͋ͱղઆ͢ Δ+7.Λ࣮૷͢ΔࡍͷίΞͱͳΔ

    $POTUBOU1PPMɼϑΟʔϧυͷ৘ใɼ ϝιουͷ৘ใͳͲͰ͢ɻ

  44. $POTUBOU1PPM 44

  45. 45 $POTUBOU1PPM  $POTUBOU1PPM͸$MBTT'JMF 4USVDUVSFͷσʔλߏ଄ͷҰ෦Ͱ +7.ʹͱͬͯಛʹίΞͱͳΔσʔλߏ଄ Ͱ͢ɻ  ੔਺ɼจࣈྻɼϝιου໊ʢҾ਺ؚ ΉʣͳͲͷσʔλ͕֨ೲ͞Ε͍ͯ·͢ɻ

     ͜ΕΒΛऔΓग़͢͜ͱʹΑͬͯ)FMMP 8PSMEΛग़ྗ͢Δ͜ͱ͕Ͱ͖ΔΑ͏ ʹͳΓ·͢ɻ

  46. ϝιου 46

  47. 47 ϝιου  ϝιου͸ɼ$MBTT'JMF4USVDUVSFͷ σʔλߏ଄ͷҰ෦ͰɼΞΫηεम০ࢠ ΍ɼҾ਺ͷ৘ใΛɼͲͷ$POTUBOU 1PPM͔Βࢀর͢Δ͔Λ͍ࣔͯ͠Δ΋ͷ Ͱ͢ɻ  ͜ΕΛಡΈࠐΉ͜ͱͰɼ)FMMP

    8PSMEͷग़ྗ͕࣮૷͞Ε͍ͯΔ QVCMJDTUBUJDNBJO 4USJOH<> BSHT ͷ৘ใ͕औಘͰ͖·͢ɻ

  48. $PEF"UUSJCVUF 48

  49.  $PEF"UUSJCVUF͸$MBTT'JMF4USVDUVSF Ͱఆٛ͞Ε͍ͯΔͷϝιουͷσʔλߏ଄ͷ Ұ෦Ͱ͢ɻ  ϝιουʹଐੑͱͯ͠ϓϩάϥϜͷ৘ใ͕ ෇ਵ͍ͯ͠·͢ɻ  $MBTT'JMF4USVDUVSFࣗମͷ"UUSJCVUFͱ ͯ͠ɼίʔυͷߦ਺Λ֨ೲ͍ͯ͠Δଐੑͷ

    ৘ใͳͲ͕͋Γ·͢ɻ 49 $PEF"UUSJCVUF

  50. Φϖίʔυͷ࣮ߦ 50

  51.  Φϖίʔυʢ0Q$PEF0QFSBUJPO$PEFʣ͸ɼ໋ྩΛ୹͘ϚγϯϦʔμϒϧʹදݱ͠ ͍ͯΔ΋ͷͰ͢ɻ·ͨҾ਺ͷ͜ͱΛΦϖϥϯυͱ͍͍·͢ɻ  $PEF"UUSJCVUFΛಡΈࠐΉ͜ͱͰɼ͜ͷ໋ྩΛऔಘͰ͖·͢ɻ 51 Φϖίʔυͷ࣮ߦ B2 00 02

    12 03 B6 00 04 B1 getstatic ͷΦϖίʔυ getstatic ͷΦϖϥϯυ (Constant Pool ͷ2 ൪໨)

  52.  ώϡʔϚϯϦʔμϒϧͰ͸ͳ͍ͷͰɼཧղ ͕೉͍͠Ͱ͕͢ɼ͜ΕΒΛώϡʔϚϯϦʔ μϒϧʹͨ͠΋ͷ͕͋ΓɼͦΕΒΛχʔϞ χοΫʢNOFNPOJDʣͱݺΜͩΓ͠· ͢ɻ  ΞηϯϒϦݴޠΛॻ͍ͨ͜ͱ͕͋Δਓ ͸ɼͳΜͱͳ͘Πϝʔδ͔ͭ͘ͳͱࢥ͍ ·͢ɻ

     +BWB͸KBWBQDίϚϯυͰɼͲ͏͍͏ ίʔυ͔೷͚·͢ɻ 52 Φϖίʔυͷ࣮ߦ

  53. ͜ͷKBWBQίϚϯυͱ ಉ͡ΦϖίʔυΛ࣮૷͢Ε͹Α͍Ͱ͢ 53

  54. 54

  55. KBWB-BOH4ZTUFN͸1)1ͷ OBNFTQBDFΛ͏·͘׆༻ͯ͠ʜ 55

  56. 56

  57. %&.0 57 IUUQTHJTUHJUIVCDPNNNSEEDFBGFDFFBGCFDBBF

  58. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ 58